Knowledge

23Jan, 2026

62. How does magnesium in molten zinc affect hot-dip galvanizing?
Magnesium (Mg), a silvery-white element with a hexagonal crystal structure, has a relative atomic mass of 24.32, melting point of 650°C, and boiling point of 1120°C. The in
23Jan, 2026

61. How do aluminum-zinc-containing and aluminum-zinc-free liquids differ in ...
When steel pipes are immersed in zinc for a short duration, the corrosion rate in aluminum-free galvanized pots is approximately 7-9 times faster than that in aluminum-containing g
23Jan, 2026

60. How does aluminum in molten zinc affect hot-dip galvanizing?
Aluminum (A1) is a silvery-white metal with a face-centered cubic (FCC) crystal structure. Its lattice constant measures 404959.6 nm, atomic mass is 26.8, melting point 658°C,
19Jan, 2026

59. How does iron in zinc bath affect hot-dip galvanizing?
Iron (Fe), with a relative atomic mass of 56, appears silvery-white. Pure iron has a melting point of 1535°C and a boiling point of 3000°C. In molten zinc, iron primarily o
19Jan, 2026

58. What is the effect of lead particles in zinc bath on hot-dip galvanizing?...
Lead (Pb) has a cubic crystal structure, appearing gray with an atomic weight of 207.21, melting at 327°C, and boiling at 1540°C. In hot-dip galvanizing, lead content shoul
19Jan, 2026

57. What are the sources of alloy components in the galvanized pot?
The sources of various alloy components in zinc liquid can be categorized into three main types. First, natural inclusions inevitably present in commercial zinc or remelted zinc, s
19Jan, 2026

56. What factors affect the normal microstructure of galvanized coating?
There are many factors affecting the normal structure of the galvanized coating, but the most important factors can be summarized as follows: (1) the change of the chemical and phy
19Jan, 2026

55. How does zinc adhere firmly to steel?
The formation of a zinc coating on steel pipes occurs through complex physical and chemical interactions between the pipe and molten zinc. Liquid zinc can corrode and dissolve most
19Jan, 2026

54. What are the operational procedures for drying?
There are two primary methods for solvent application on steel pipes during drying operations, both domestically and internationally: the rolling method and the chain feeding metho
09Jan, 2026

53. What are the consequences of prolonged drying time for steel pipes?
When solvent-coated steel pipes undergo drying in a drying furnace, prolonged exposure to either high or low temperatures can lead to two critical issues. Excessive drying at high
09Jan, 2026

52. What are the potential issues caused by insufficient drying of steel pipes?
When steel pipes are dried after being coated with solvent aqueous solutions, if they fail to reach the required drying temperature for hot-dip galvanizing and retain excessive moi
07Jan, 2026

51. What determines the drying temperature?
The drying temperature is determined by the solvent type, as different solvents have varying melting points. For instance, zinc chloride has a melting point of 283°C and a boil

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